When merging onto a main road from a side road, at what exact moment should the driver switch off the turn signal?

Question

DentroTest · Accepted Answer

Optical signaling is fundamental for road safety. According to regulations, the warning light (turn signal) must be maintained throughout the execution of the maneuver and must be extinguished (switched off) immediately after completing it. This means you should not turn it off until your vehicle is fully integrated and aligned within the lane of the new road. Turning it off before crossing the line can confuse other drivers, making them believe you have aborted the maneuver. Furthermore, the use of the horn is restricted to emergency situations or to prevent accidents, and it never replaces the use of turn signals to indicate trajectory.

When merging onto a main road from a side road, at what exact moment should the driver switch off the turn signal?

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